Localization of IandC sensors inside/outside containment for NPP Temelin

The paper deals with remote mounted IandC sensors, for which the process tapping points are inside the containment. The remote mounted IandC sensors are connected, via an impulse line, to the process system; they measure selected process parameters such as pressure, level or flow. In order to receive a correct measurement of the process parameters, a number of criteria for the impulse line/sensor arrangements have to be fulfilled. Additionally, specifically for nuclear power plants, the channel separation criteria, and the protection criteria against high energy line breaks have to be fulfilled, as applicable, for the sensor systems. (author)